ADAV4601BSTZ

Overview

The ADAV4601BSTZ is an 80-lead LQFP audio signal processor designed for advanced television applications. It features a fully programmable 28-bit architecture with default TV audio processing flows, including matrix switching and automatic volume control. The device integrates high-performance 24-bit ADCs and DACs, delivering 95 dB and 94 dB dynamic range respectively. It supports sample rates from 5 kHz to 50 kHz via integrated sample rate converters and provides multichannel digital I/O, S/PDIF interfaces, and PWM outputs. Operating voltages are 3.3 V for analog and interface supplies, and 1.8 V for the digital core.

Feature Summary

• Fully programmable 28-bit SigmaDSP® audio processor with default TV audio flow
• High-performance 24-bit ADC (95 dB DNR) and DAC (94 dB DNR)
• Integrated sample rate converters supporting 5 kHz to 50 kHz input rates
• Multichannel digital I/O including four stereo I2S inputs and one stereo output

Applications

• General-purpose consumer audio post-processing
• Home theater in a box systems and DVD receivers
• Audio processing subsystems for DTV-ready TVs
• Analog broadcast capability for iDTVs

Procurement Notes

Verify the package type is 80-LQFP and confirm operating temperature range is -40°C to +85°C. Ensure supply voltages match specifications: 3.3 V for AVDD/ODVDD and 1.8 V for DVDD. Check that the specific suffix BSTZ corresponds to the required commercial grade and packaging configuration as defined by Analog Devices.

Selection Notes

Select this component for applications requiring precise audio-video synchronization up to 200 ms. It is suitable for designs needing multiple digital audio inputs routed through sample rate converters. Consider the internal headphone amplifiers and PWM outputs if driving direct speaker loads or headphones without external amplification stages.

Part Context

The ADAV4601 belongs to the SigmaDSP® family of audio processors. It utilizes a continuous-time, multibit Σ-Δ architecture for its analog front end. The device allows custom audio flows to be developed using the SigmaStudio™ graphical programming tool, enabling integration of third-party algorithms alongside standard ADI library functions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.